User should be able to add remove update using mvc4 /5

Question

HI Frnds

User should be able to add remove update.

points should be use ///

. implements proper oops concept
. create multiple layers atleast 3 tier architecture
. use interface
. code should should be working
. write unit test cases
. give less priority to output and ui
. you need not ant db and you can go just by the string